gawk (version 3.1.2)

Gawk is the GNU Project's implementation of the AWK program-
ming language. It conforms to the definition of the
language in the POSIX 1003.2 Command Language And Utilities
Standard. This version in turn is based on the description
in The AWK Programming Language, by Aho, Kernighan, and
Weinberger, with the additional features found in the System
V Release 4 version of UNIX awk. Gawk also provides more
recent Bell Laboratories awk extensions, and a number of
GNU-specific extensions.

Pgawk is the profiling version of gawk. It is identical in
every way to gawk, except that programs run more slowly, and
it automatically produces an execution profile in the file
awkprof.out when done.

The command line consists of options to gawk itself, the AWK
program text (if not supplied via the -f or --file options),
and values to be made available in the ARGC and ARGV pre-
defined AWK variables.